Question

Q.The diameter of a
wheel of a van is
1.40m.How many
revolutions will it make in
covering 22km​

Answer 1

Step-by-step explanation:

In 1 revolution = 2πr= circumference of Circle

2*0.7*22/7

2*7*22/70

44/10= 4.4m

22 km = 22000 meter

number of revolution= 22000/4.4= 5000 revolution

Answer 2

Answer:

circumference of wheel= 2πr

R=D/2

1.4/2=0.7m

                                    = (2 x 0.7)π

                                    = 4.4m

no.of revolutions = distance travelled / circumference of wheel

                          = 22000/4.4

                          = 5000 revolutions

(mark me brainliest plss)